1//===- llvm/unittest/Support/ManagedStatic.cpp - ManagedStatic tests ------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9#include "llvm/Support/ManagedStatic.h"
10#include "llvm/Support/Threading.h"
11#include "llvm/Config/config.h"
12#ifdef HAVE_PTHREAD_H
13#include <pthread.h>
14#endif
15
16#include "gtest/gtest.h"
17
18using namespace llvm;
19
20namespace {
21
22#ifdef HAVE_PTHREAD_H
23namespace test1 {
24  llvm::ManagedStatic<int> ms;
25  void *helper(void*) {
26    *ms;
27    return NULL;
28  }
29}
30
31TEST(Initialize, MultipleThreads) {
32  // Run this test under tsan: http://code.google.com/p/data-race-test/
33
34  llvm_start_multithreaded();
35  pthread_t t1, t2;
36  pthread_create(&t1, NULL, test1::helper, NULL);
37  pthread_create(&t2, NULL, test1::helper, NULL);
38  pthread_join(t1, NULL);
39  pthread_join(t2, NULL);
40  llvm_stop_multithreaded();
41}
42#endif
43
44} // anonymous namespace
45